family Asteraceae vs genus Picris

family Asteraceae and genus Picris both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Asteraceae	Yes	No	No	No
genus Picris	Yes	No	No	No

family Asteraceae (noun)	genus Picris (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of weedy Old World yellow-flowered herbs usually containing a bitter-tasting substance: bitterweed